That type of civilian policy would be much less stressful, that's for sure.
Unlike, for instance, being handcuffed and thrown into isolation for three days; just you and your thoughts, not knowing if your family is ok, not knowing if the perp is dead or alive.
Maybe we should all take a copy of this and put it in our wallet.
I always say: You're going to be emotional, you're going to be pissed, and you're more than likely going to be arrested and can be held for up to 72 hours. Oh, and they are definitely going to want to get your side of the story without a mention of an attorney, and are going to want definitive statements--wait for your attorney.